Guild Wars 2

Today i tried to solo Rumblus with ele, and then i figure that boss is buggy.

1. If boss have zero defiance, using frostbow5 wont work on him always. He gets interrupt but not deep freeze effect. In most cases he simply continue with his next attack (having now 5defiance stacks).

2. His rumble attack where he makes ceiling collapse. After 2nd-3rd use of that rumble attack, Grast shield doesn’t work anymore, rocks go all over the place and is matter of luck if u get hit or not; cause where to dodge if every single spot around u is red…

I also noticed that rarely boss resets on his own, even though i’m in that “fight pit” where boss walks, and not on unreachable terrain.
While fighting boss i noticed that he can be pulled on stairs to fight there where he can be kited, but he can easily reset. It is also possible to pull boss over that hidden jumping puzzle and walk him over that (just require lot of patience, caution and dodge/block).

Bellow is screen shot i made one second after i died, Grast shield was still up and most of aoe still visible.

Tell me what u think about this, i appreciate every comment toward this fix or finding solution.

The “almost everywhere” AoE attack is intentional, similar to the Mai Trin Fractal. It’s still possible to dodge (You can see the gaps on your screenshot), although remarkably difficult. Most groups simply kill the boss too fast for the boss to reach this stage.

As to the rest, I am unsure.

Ty for answer

Reelix.6319:

The “almost everywhere” AoE attack is intentional, similar to the Mai Trin Fractal. It’s still possible to dodge (You can see the gaps on your screenshot), although remarkably difficult. Most groups simply kill the boss too fast for the boss to reach this stage.

As to the rest, I am unsure.

I don’t agree with u. It is not same as Mai Trin. Grast shield doesn’t work after 2-3 times so u missed point. It is RNG if u will dodge it or not (on Mai Trin u always have where to dodge and aoe circles there are much more representative of incoming damage). I made screen shot when some aoe circles are already gone. As said on wiki in boss description http://wiki.guildwars2.com/wiki/Ascalonian_Catacombs_(explorable)#Colossus_Rumblus

So u can see, that there is no boss ability that breaks Grast shield. I would understand that i was hit if Grast didn’t cast it. I would appreciate if u would go solo few times and see it yourself.

I can survive that shield break bug with focus 5(earth) and mist form.

The point of this post is not hardcore RNG dodging of cave in attack of Colossus Rumblus. Point is that Grast shield stops working and that fb5 doesn’t work properly when boss have zero defiance. I would experiment deeper some other bugs i saw but i really don’t have time for that or i don’t see that i will get anything with that.

Sorry in advance if i have spell or grammar mistakes.

Yep, it’s an overlooked problem with the stability changes. They didn’t think about the consequences of doing this because there are certain NPCs and mobs that apply stability for themselves but it counts as 1 stack only. Example of this is Detha at the end of AC p2, and a new bug that surfaces as a result of this stability change is that she can get cced by one of those elite ascalonian rangers right as she finishes the last trap to the north, and then you have to reset the whole instance because she bugs if she gets pushed to the north.

Grast is another example. He gets cc interrupted during the barrier animation because his stability, which is intended to not be stripped, is removed so he tries use the shield immediately again afterwards. I suppose he may have a cooldown with this skill as well which lasts as long as colossus’s shout that causes the ceiling to collapse, so… basically Grast is using the shield at the wrong times due to the stability changes.